Chapter 17 - Chapter 17 Downcutting: the process of eroding...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17 Downcutting: the process of eroding or digging into substrate How does a stream channel form? 1. the velocity of the flow, faster flow erodes quicker 2. the strength of the substrate, weaker substrate erodes more rapidly 3. vegetation cover, unvegetated ground can be eroded rapidly Drainage Network: an array of interconnecting streams that together drain an area a. tributaries: smaller streams b. trunk steam: the single larger stream the tributaries flow into Different types of networks 1. dendritic: looks like a deciduous tree with branches connecting to a trunk 2. radial: drainage forming on the surface of a cone shaped mountain flow off the peak 3. rectangular: in places where a rectangular grid of fractures breaks up the ground, channels form and streams join at right angles 4. trellis: a single stream that cuts across ridges and places where the trunk stream are Watershed: a drainage basin, broad region that collects water Drainage Divide:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/01/2012 for the course GEOLOGY 100 taught by Professor Lepre during the Fall '11 term at Rutgers.

Page1 / 2

Chapter 17 - Chapter 17 Downcutting: the process of eroding...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online